<template>
  <h2>我是About的内容</h2>
</template>

<script lang="ts">
export default {
  name: "About",
  mounted() {
    console.log("About组件挂在完毕了", this);
  },
  // beforeDestroy() {
  //   console.log("About即将被销毁");
  // },
};
</script>

<style></style>
